The CAP CER 2200PF 440VAC Y5U RADIAL is a type of ceramic capacitor with a capacitance value of 2200 picofarads. It operates at a voltage rating of 440 volts AC and has a tolerance of ±20%. The part number indicates that it is a radial (also known as disc) type, which means the leads are on opposite sides of the component, allowing for easier mounting on a circuit board.